Texas Instruments AMC7834, User Manual, Page: 20 / 32

AMC7834EVM Software Overview
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20 SLAU608B – December 2014 – Revised May 2016
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AMC7834 Evaluation Module
5.2.5 AMC7834EVM ALARMS Page
The AMC7834 ALARMS page provides access to the programmable out-of-range alarms for the internal
and external temperature sensors, the DAC internal monitoring channels, and the bipolar DAC outputs.
Figure 23 displays the ALARMS Page of the AMC7834EVM. The page displays the name of each alarm,
shown under the Alarm Name column, and provides information such as the Value , High Limit , Low Limit ,
and Alarm Status , with additional options.
Figure 23. ALARMS Page
To use the page, the ADC channel, Temperature Sensors, or bipolar DACs should be enabled in their
respective ADC and DAC page of the GUI. This is achieved by enabling the appropriate channel’s mux.
Once the channels are active, the
Low Limit and High Limit fields are available for edit (see Figure 24 ).
Figure 24. Low Level Configuration Page
The Write Settings button is used to write the values from the Low Limit and High Limit fields into the
device. The Read Alarm button is used to read the state of the active channels. When an alarm is
triggered, the Alarm Status displays the text Tripped in red. If the channel values are within the range of
the alarm thresholds, the status displays No Alarm in black text.
Figure 25 displays the ADC Channel False Alarm protection, CH-FALR, drop-down list, which contains
integer values that are related to the consecutive number of samples required for the alarm to activate.
The lists defaults to 16 consecutive samples, therefore requiring 16 conversions with an over-range value
before the alarm is triggered. The temperature sensing inputs also have their respective False alarm
protection. The lists for these inputs default to 4 consecutive samples before the alarms are triggered.